<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" src="jquery-easyui-1.6.10/jquery.min.js"></script>
</head>
<body>



<div class="desktop" style="width: 400px;height: 400px;background-color: #c75252">

    <div class="kkk" style="width: 200px;height: 200px;background-color: #00bbee"></div>

</div>

<div class="kkk" style="width: 200px;height: 200px;background-color: #00bbee"></div>

<script>
    $(function () {

        $('.desktop').bind("click", "desktop", function( str ){
            // console.log(str);
            console.log('bind click str = ' + str.data);
        });

        $('.kkk').unbind().bind("click", "kkk", function( str ){
            // console.log(str);
            console.log('bind click str = ' + str.data);
        });

    });
</script>
</body>
</html>